Arthur wise cash



A. W. CASH. NIPPLE CHUCK.

(No Model.)

No. 452,769. Patented May 26,1891.

lNI/E/VTOR,

A TTORNEY UNITED STATES PATENT FFICE.

ARTHUR lVISIl CASH, OF ISRIDGEPORT, CONNECTICUT, ASSIGNOR TO THEARMSTRONG MANUFACTURING COMPANY, OF SAME PLACE.

rvlPPLli-Cl-iook.`

SPECIFICATION forming partof Letters Patent No. 452,769, dated May 26,1891..

m Application filed February 6, 1891.

To all whom. t may concern:

Be it known that I, ARTHUR VISE CASH, a citizen ofthe United States,residing at Bridge port, in the county of Fairfield and VState ofConnecticut, have invented certain new and useful Improvements inNipple-Chucks; and I do hereby declare the following to be a full,clear, and exactdescription ot' the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to certain novel and useful improvements innipple-chucks, and has for its object to provide a device ot' thisdescription which shall be of great simplicity and which may be used inconnection with any ordinary pipe-vise and threadingtools. I have,however, designed the present construction with a special reference touse in connection with the pipe-threading machine shown and described incertain Letters Patent of the United States, No. ltheiihgranted to methe 19th day of August, 1890.

My invention consists in the construction and combination of elements ashereinafter set forth, and then recited in the claims.

In order that those skilled in the art to which my invention appertainsmay fully understand its construction and operation, I will describe thesame in detail, reference beinghad to the accompanying drawings, whichform a part of this specification, and in which- Figure l is atransverse vertical section showing` my improved chuck with a nippletherein, the chuck being held between a pair of vise-jaws. The sectionis upon theline y y of Fig. 2. Fig. 2 is a longitudinal vertical sectionon the 4line c u of Fig. l, Fig. an end elevation of the chuck.

Like numerals denote the same parts in all the figures of the drawings.

My improved chuck consists of a sleeve l,

split longitudinally, as seen at 2, so as to make ,y

it resilient, and therefore contractible within certain limits.

3 are annular internally-projecting abut ments formed integraltherewith.

At 4 and 5 the tubular ends of the chuck are threaded as far in as theabutments, the

Serial No. 380,413. (No model.)

threaded ends being preferably of different diameters, so that eachchuck may accommo date two different sizes of pipe.

G are projections which are adapted to serve as legs, and also toprevent the chuck from turning in the vise-jaws, which are shown at Fig.l and are denoted by the numeral 7. i

The operation of myin vention is as follows: The chuck is tirst placedbetween the jaws of an ordinary or specially-arranged pipe-vise,substantially as shown at Fig. l. The partially-threaded nipple which itis desired to complete is then screwed inward until its end engagesthe'abutment. In Fig. 2 the nipple, which is denoted by A, is shown asnot quite screwed home; but this is simply for the purpose of showingone of the threads i in elevation. Then the nipple has thus been screwedin, the vise-jaws are contracted,

thereby compressing the split chuck-body and causing it to firmly graspthe threaded end of the nipple. lVhen so grasped, the projecting blankend may be threaded in any suitable manner. During the threadingoperation the nipple is held by the combined action of thecontractedchuck-body and the internal support which the abutment affords to it.The contraction alone would hardly suflice to hold the nipple firmly,and were it not for the contraction of the chuck-body the action of thethreading-tool would tend to drive the threaded end of the nipple sormly against the abutment as to render its release difficult. Whenoperating as shown and described, however, the nipple is held securelyenough for all practical purposes, and is not caused to engage theabutment so tightlybut that it may be readily unscrewed and removed. Byproviding1 the two ends of the chuck with threads of unequal size thesame chuck serves two different size-s of nipples.

I claim as my invention l. A nipple-chuck as described, the sameconsisting of a tubular longitudinally-slotted body having itsextremities internally threaded and provided upon its inner surface atthe ends ot' the threaded portion with annular abutments, substantiallyas set forth.

2. As a nipple-chuck, the hollow longitudi- IOO nelly-slotted sleeveadapted Afor insertion be In testimony whereof Iai'iix my siguatureintween the jews `of npipe-Vsesaid sleeve hfwpresence of two witnesses.ing its extremities internallythreaded for the ARTHUR WISE CASHaccommodation of nipples of different diam- 5 eters, and having also theinternally-project Witnesses:

ing annular abntments, substantially as de- SHERMAN HARTWELL HUBBARD,scribed. 1 MINNA C. HINCHCLIFFE.

